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Questions tagged [imap]

IMAP stands for Internet Message Access Protocol and is the other e-mail protocol along with POP.

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1answer
19 views

Cyrus IMAP mailbox replication. Is it encrypted over the WAN?

Servers are both Debian 9. According to Debian package search they are version 2.5.10. I need to find out if replication as described here Cyrus Documentation: Replication is encrypted over the WAN. ...
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0answers
26 views

IMAP to Office 365 migration error

I am migrating mailboxes from an on-premise IMAP server to Office 365. Most of the accounts are migrating fine, but I'm hitting the following error on a handful of accounts. Error: ...
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2answers
151 views

Webmail via imap unix socket - good idea or not?

I'm slowly setting up an email system on a Centos 7 server. The particular software I'm using will consist of postfix, dovecot and roundcube, although my question isn't specific to them (I think). I'...
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3answers
98 views

Dovecot imap send spam to junk

I am using Ubuntu 18.04 64 bit dovecot 2.2.33.2 spamassassin 3.4.1 amavisd The goal is to run an e-mail server, which I achieved already. I can access the e-mails at the server using Thunderbird ...
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0answers
179 views

HAProxy - IMAP, SMTP, POP3 - Multiple Servers

Please accept my apologies if this is off topic or does not apply on a more broad scale (i've searched the internet and can't seem to find a solution anywhere). I'm not sure if this is even possible, ...
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2answers
45 views

Cyrus - Fix quota usage

I have a mail infrastructure running on Cyrus (2.5.10), Postfix (2.7.1) and Perdition (1.19). Recently many users have been complaining about their quota usage being displayed wrongly. When trying ...
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1answer
111 views

Can't login to IMAP/POP3 server external

I have installed Postfix, Dovecot and MySQL via this tutorial (https://www.linode.com/docs/email/postfix/troubleshooting-problems-with-postfix-dovecot-and-mysql/). When I do the following command, I ...
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0answers
80 views

Dovecot SSL Failure (Postfix Working Fine)

We're trying to connect an e-mail client to our mail server. We have postfix and Dovecot configured and running on ubuntu. We can see that Dovecot is listening on the correct port using: $ sudo ...
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3answers
112 views

Are CNAME “imap…” and “smtp…” subdomains needed?

I'm running my Postfix email server. I have only 1 A dns record for it: mail.my_domain.com I'm able to connect to it, receive and send email through it using only this url. Namely, I don't have "smtp.....
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1answer
338 views

Login Fail for IMAP on Exchange Server 2016

I have deployed Exchange Server 2016. I am able to send email over 587 while I face Login failure over IMAP 993 and POP3 995. Over Microsoft Tool https://testconnectivity.microsoft.com/ IMAP Test ...
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0answers
93 views

FreeBSD Postfix Dovecot Roundcube - unable to login from Roundcube

i'm recieving such error : IMAP Error in /usr/local/www/apache24/data/roundcube/program/lib/Roundcube/rcube_imap.php (196): Login failed for test1@example.com from 1.2.3.4. AUTHENTICATE PLAIN: * OK ...
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0answers
246 views

Roundcube IMAP log — NO [AUTHENTICATIONFAILED] Authentication failed

system: Ubuntu 17.10 This is the error I am getting when trying to log in log-file /var/lib/roundcube/logs/imap: [17-Apr-2018 22:03:13 -0700]: <3aedeusd> [1116] S: * OK [CAPABILITY IMAP4rev1 ...
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0answers
167 views

Dovecot and deduplication based on the email message content, not the dovecot's Id

Problem I have an IMAP-only server and I want it to automatically de-duplicate messages. I am unable to make dovecot remove copies of "identical messages" based on their content. PD: I only need to ...
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0answers
67 views

How to escape characters in IMAP mailbox names?

I'm connecting to an IMAP server that uses . as the mailbox hierarchy delimiter. The mailbox names follow the schema "Other Users.login.Drafts", where "login" is replaced with a Linux user name. In ...
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0answers
90 views

Thunderbird sub folders grayed out after migrating to new mail server (postfix,dovecot,docker)

I migrated my old mail server (postfix,dovecot,...) to a new one (same services but with docker). In addition I changed the mail dir of the single account from .../domain.tld/name/Maildir to .../...
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1answer
99 views

IMAPCopy - Bad or invalid system flag \RECENT

I'm using IMAPCopy 1.04. During the copy process I get the following errors for many messages: Bad or invalid system flag \RECENT (messages with this error are not copied at all) What does it mean ...
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1answer
44 views

imap-login director is not restarted after each auth request

imap-login by default in dovecot mail server is restarted after every login request keeping security in mind to avoid leak of critical data. But in a director config, the imap-login director process ...
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1answer
110 views

DNS SRV records for IMAP are not seen or used

To the best of my knowledge, the below DNS records should work as a failover for my mail servers: example.com A 192.0.2.1 3600 www.example.com A 192.0.2.1 3600 ftp.example.com A ...
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1answer
176 views

Getting error with dovecot when authenticating user (Home directory not set for user)

I am trying to set up a relatively basic postfix/dovecot IMAP/SMTP server with a MySQL backend. It appears that the authentication is successful, I just seem to be getting this error: Initialization ...
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1answer
37 views

Is it possible to use a mail relay as a proxy from one port to another?

We have a server that needs to connect to an IMAP server outside of our network. Unfortunately, the server we need to connect to requires a connection on port 993. The problem is our host blocks port ...
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1answer
99 views

Timeout when connecting to remote imap server

I have a google compute cloud VM (Ubuntu 17.10) and I am trying to setup a mail daemon. I have installed postfix and dovecot according to this article (all steps followed exactly, from a fresh install)...
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2answers
450 views

How to make dovecot and postfix use the same mail directory

I'm trying to configure postfix and dovecot to connect to the same LDAP, and I kind of succeeded. But now, I have some discrepencies. The reproduction is as: I connect to dovecot in IMAP with ...
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1answer
203 views

cyradm delete mailbox permission denied

I have a new ClearOs 7 system. It has Cyrus IMAP installed. In trying to copy the mailboxes from the old server, I seem to have screwed up one of them. It has a folder called Junk E-mail which is only ...
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3answers
2k views

Dovecot cant connect to imaps 993

I am trying to set up a mail server in digitalocean VPS. The problem is that i cant telnet to 993 although firewall is inactive and dovecot is listening. Please tell me where i do wrong. I followed ...
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0answers
133 views

doveadm (dsync) to backup gmail (Gsuite) account — Connection Refused

i am trying to migrate email accounts away from G Suite (gmail Enterprise) and am not getting very far.. i've allowed 'less secure apps' and turned on IMAP (and POP) access (though, obviously, IMAP ...
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0answers
61 views

Mail for iOS error connecting to Courier IMAP, no password authentication

I’ve successfully installed postfix and Courier IMAP in an Ubuntu server 16.04 installation. I have set up a new user, set postfix to use the Maildir format, and created the Maildir directories in the ...
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0answers
40 views

Forward unencrypted imap traffic into TLS-enabled?

Specifically in this example, I'm looking toward the ProtonMail Bridge, which will soon be available for Linux. For those unaware, this sets up a local imap server that decrypts your mail and allows ...
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2answers
580 views

IMAP how to login with AUTH=LOGIN in console with OpenSSL

I have seen some servers that returns AUTH=LOGIN when I request the CAPABILITY of the IMAP server e.g: 1 CAPABILITY CAPABILITY IMAP4 IMAP4rev1 AUTH=LOGIN AUTH=PLAIN AUTH=XOAUTH2 SASL-IR ...
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0answers
183 views

Tips for Troubleshooting Remote IMAP/SMTP Host Connection with OPENSSL and NMAP

I work in tech support for a company that has an email inbox integration. Users can input IMAP and SMTP host names and ports and we will attempt to open a connection with those ports and host names so ...
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1answer
160 views

How to copy mail data from Mac OS X Server 5.3.1 to New Server 5.3.1

We have a Mac OS X Server v5.3.1 that has been failing, but we have many good backups. As a matter of fact, the internal HDD had failed and we are currently running off of an image on a bootable ...
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1answer
53 views

How does Outlook cope with IMAP server change (MX)

What happens with an Outlook local inbox when there happens to be an IMAP server change (MX change) and the new IMAP server/mailbox is blank? Will Outlook retain already downloaded messages in it's ...
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1answer
52 views

Local email delivery to (remote) IMAP server

I need to deliver incoming mail from my local MTA into a (remote) IMAP mailbox. Is there a tool which can do that? I cannot deliver the mail via SMTP because the remote system's spam filters etc. are ...
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0answers
196 views

How do I create a folder in Cyrus imap

I have Cyrus imap installed on my clearos Linux router. I have a cron job which passes all email in all folders called "Junk E-mail" through sa-learn, so if users copy spam into that folder, it will ...
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1answer
27 views

Exchange combined with another provider using imap

Given a mail infrastructure on a shared hosting environment using ~10 main email inboxes and ~30 email inboxes for other purposes, all via IMAP. We now want to migrate to Microsoft Exchange (using ...
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0answers
58 views

Gmail & GoDaddy - How to AMEND email settings?

I have no idea where else to turn to ask this! Stack Overflow admins sent me your way. I recently transfered a domain away from one host over to GoDaddy.com, and the person i did this for uses gmail ...
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2answers
510 views

Mailbox on-the-fly decryption (dovecot)

To avoid casual mailbox snooping for an IMAP server I am thinking of "transparent encryption" setup that would: Public key encrypt incoming messages at local delivery time Private key decrypt said ...
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0answers
48 views

Roundcube filter plugin with dovecot

I have migrated from courier-imap to dovecot-imap. Performance gain is incredible, however my plugin is no longer working. By not working i mean that all the rules i have are just ignored, and all ...
2
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1answer
91 views

How do the servers mark the email as read

I'm looking to know how servers mark emails as read and unread with IMAP or POP. I've logged into my server (using cPanel) and navigated to my mail directory and downloaded the same email file, ...
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1answer
797 views

Exchange IMAP Setup SSL & TLS

Regarding set-up of IMAP on exchange 2010 sp3, there are a couple of things I don't understand. 1) I have SSL v2 & v3 disabled on the server via registry. So how are clients able to connect to ...
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1answer
18 views

Reliability mechanisms in different IMAP servers

I've occasionally been burned when using IMAP to move messages from one folder to another - basically, having messages disappear into the ozone. One would think that a server would copy, confirm, ...
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1answer
175 views

Forbid IMAP clients create mailboxes in Dovecot

In this specific setup I want to forbid clients to create mailboxes other than the default ones. I searched for this in the documentation but found nothing. I'm using Dovecot with virtual users.
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0answers
303 views

Postfix: Temporary internal error / Dovecot: Initialization failed

Today I wanted to make a mail server, but it did not work. Can you help me ? I followed this tutorial: https://www.linode.com/docs/email/email-with-postfix-dovecot-and-mysql Errors obtained: Sep 19 ...
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votes
1answer
90 views

SRV Records not visible, can not receive E-Mails [closed]

I set up a debian 8.7 linux server with the IP 123...1 and I pointed bla.example.org at it. (www.)example.org points on another Server 123...2. Now I installed mailcow on this server and I am using ...
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1answer
409 views

How to fix tls_sessions.db cyrusdb error?

Why there is no tls_sessions.db file and how to fix this error? So I finally decided to go with Cyrus for my mail server. (I'm still deciding exim4 or postfix though) I installed those packages: ...
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1answer
183 views

Horde Kronolith Authentication using IMAP

I have set up a Horde Groupware Webmail Edition server, primarily to use webmail (provided by the hosting provider) and calendar (provided by us). Authentication is set up using IMAP authentication ...
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1answer
73 views

Courier IMAP server and availability

i manage a little mail server based on Ubuntu Server, with: exim4 courier imap server spamassassin clamav to serve 20 users mailbox. It works well, but i'd like to put in service a second server with ...
2
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1answer
1k views

Connecting to Hotmail's IMAP Server using Telnet [closed]

Hotmail appears to have two separate IMAP ports: imap-mail.outlook.com 993 And: imap-mail.outlook.com 143 My guess here is that 143 is unsecured, and 993 is over SSL. However, when I try to ...
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1answer
716 views

Dovecot “Address already in use” error

I've some problem with starting dovecot server. I get the following error: Failed to start Dovecot : Error: service(imap-login): listen(*, 143) failed: Address already in use Error: service(imap-...
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1answer
2k views

Haproxy Load Balance IMAP,POP3,SMTP: Unable to use proxy 'imap' with wrong mode, required: http, has: tcp

I try to reverse proxy all the incoming email traffic to a mailcow-dockerized solution in my debian server via haproxy: The haproxy.cfg configuration is: global log /dev/log local0 log /...
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1answer
960 views

Docker Mailcow: Nginx as Mail reverse proxy to docker container images using SMTP, POP3 and IMAP

On my server I am running a mailcow:dockerized solution on a debian server and I want to use the nginx not only as an http reverse proxy but also as an SMTP imap and pop3 too as seen in https://www....